"You can't remove wickedness from the world," our opponent argues, "so you can't remove anger either. And neither one is possible anyway." But here's my first point: a person doesn't have to be cold just because it's winter by nature's calendar. And they don't have to sweat just because it's officially summer. You can find shelter from bad weather by choosing where to live. Or you can train your body to handle both heat and cold. Now let me flip this argument around: You must remove anger from your mind before you can let virtue in. Vices and virtues can't live together. You can't be an angry person and a good person at the same time — any more than you can be sick and healthy at once.
“Wickedness,” says our adversary, “must be removed from the system of nature, if you wish to remove anger: neither of which things can be done.” In the first place, it is possible for a man not to be cold, although according to the system of nature it may be winter-time, nor yet to suffer from heat, although it be summer according to the almanac. He may be protected against the inclement time of the year by dwelling in a favoured spot, or he may have so trained his body to endurance that it feels neither heat nor cold. Next, reverse this saying:—You must remove anger from your mind before you can take virtue into the same, because vices and virtues cannot combine, and none can at the same time be both an angry man and a good man, any more than he can be both sick and well.